The answer to the second question on page 53 is 6.28 square centimeters.
The answer to question 4 on page 54 is18.84m37.68m.
Unit 54 The answer to the exercise question is the sixth question 3 times 9 times the seventh question C The eighth question A The ninth question 50.24 square centimeters The sixth question 1 1 The circumference of the first figure is 25 1.2 centimeters, and the area of the second figure is 5024 square centimeters.
Question 12: The shaded area of the first figure is 3 1.4 cm2, and the shaded area of the second figure is12.56cm2..
The problem 13 is 94.3 meters.
Question 14 144 cycles
Question 15 10 score
Question 16 25. 12 m2
Question 17: 0.5024 m2
You can make a list yourself.